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    <title>Actions that can be performed on the device on the APP</title>
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                    <b>Monitor Device:</b>
                    <span>In the [Home] interface, select the doorphone device you want to monitor, click the [Monitor] button, you can view the video screen of the doorphone device.</span>
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                    <b>One-click door opening:</b>
                    <span>In the [Home] interface, select the access control device you want to open, click the [Open Door] button, you can open the door.</span>
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                    <b>Calling Device:</b>
                    <span>In the [Home] interface, select the device you want to call, click [Make Call] button, you can call the device.</span>
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